Android wifi starts after reconnecting the previous hotspot via wifimanager

In my application, I connect to a wifi hotspot using wifiManager using the call described in the docs that tell you to call enableNetwork and pass true as the second parameter to disable other networks:

wifiManager.enableNetwork(networkId, true); 

      

        
        
        
      

    

A side effect is that after disconnecting from the hotspot, the network I was previously connected to is still disconnected. If you look in the wifi settings, it will be listed as "Disabled".

I would like to leave the state of the previously connected network as I found it. To do this, I save the state of the configured networks before adding my new network, and then restore the allowed states after disconnecting from the new network:

private void saveWifiState() {
    final WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
    wasWifiEnabled = wifiManager.isWifiEnabled();
    savedNetworks = wifiManager.getConfiguredNetworks();
}

private void restoreSavedWifiState() {
    final WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
    if (!wasWifiEnabled) {
        wifiManager.setWifiEnabled(false);
    }
    // When we connected to the specified network we disabled all others.
    // Now restore the enabled state for those that were previously enabled.
    if (savedNetworks != null) {
        for (int i = 0; i < savedNetworks.size(); ++i) {
            if (savedNetworks.get(i).status == WifiConfiguration.Status.CURRENT || 
                    savedNetworks.get(i).status == WifiConfiguration.Status.ENABLED) {
                    wifiManager.enableNetwork(savedNetworks.get(i).networkId, false);
                }
            }
        }
    }
}

public void disconnect()
{
    final WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
    wifiManager.removeNetwork(networkId);
    restoreSavedWifiState();
    wifiManager.saveConfiguration();
}

      

        
        
        
      

    

When I run this code on a Samsung Galaxy Tab 4 10.1 (SM-T531) running Android 4.4.2, it leaves the wifi in a bad state. Scanning for AP stops working. I get "Requested scan (ret = -16) - timeout 30 seconds" followed by "Failed to start AP scan" from wpa_supplicant in logcat.

If I connect to the wifi settings and try to connect the network from which I was originally connected using the saved password, it fails with the "CTRL-EVENT-ASSOC-REJECT" message from wpa_supplicant in logcat. I have to reboot or turn on / off airplane mode in order to reconnect to this network.

Any ideas on why the call enable network feature puts wifi in a bad state? Is there a better way to keep the original state of the inclusion of other networks?